Open AccessTechnique to counter active echo cancellation of self‐protection ISRJ
Author(s) -
Baher Safa Hanbali S.,
Kastantin R.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2017.0617
Subject(s) - echo (communications protocol) , jamming , repeater (horology) , chirp , radar jamming and deception , electronic engineering , power (physics) , computer science , signal (programming language) , radar , amplitude , sampling (signal processing) , phase (matter) , engineering , acoustics , telecommunications , physics , pulse doppler radar , artificial intelligence , radar imaging , optics , computer network , laser , quantum mechanics , detector , encoding (memory) , thermodynamics , programming language
In the active echo cancellation (AEC), the jammer can suppress the true target by superimposing on it a false target with the same amplitude and inverted phase. Under certain conditions, the interrupted‐sampling repeater jammer (ISRJ) performs a kind of partial AEC against chirp radars. A novel technique that not only eliminates the effect of a self‐protection ISRJ is proposed, but also the jamming signal power to augment the power of the true target is exploited. The theoretical analysis of this technique is presented and its effectiveness is verified by simulation.